Warping-cleaver for looms.



B. P. ABBOTT.

WARPING GLEAVER FOR LOOMS.

APPLICATION FILED JUNEZ7, 1911. 1,023,703.

ill I INVENTOR WITNESSES Attorney ion.

BENJAMIN F. ABBOTT, OF LISBON FALLS, MAINE.

WARPING-GLEAVEB. FOR LOOMS.

Specification of Letters Patent.

Application filed June 27, 1911.

Patented Apr. 16, 1912.

Serial No. 635,652.

T 0 all whom it may concern Be it known that I, BENJAMIN F. ABBOTT, a citizen of the United States, residing in Lisbon Falls, in the county of Androscoggin, State of Maine, have invented certain new and useful Improvements in VVarping- Gleavers for Looms; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to improvements in warping cleavers for looms.

It has for its object to provide a device which is capable of being applied and used on any and all kinds of looms.

It further has for its object to provide a device which effectually prevents pick-outs, break-outs, thick and thin strips, soiling of cloth, &c.

It further has for its object to provide a device which will allow a maximum amount of cloth to be woven in a minimum amount of time.

It further has for its object to provide a device which will assist in the weaving of hard, soft sized and clinking warps.

It further has for its object to provide a device which is simple, durable and inexpensive in construction, easy and effective in operation and which when once adjusted properly on a loom will wear almost indefinitely and require very little if any repalring.

It further has for its object to provide a device which will separate any warp threads which become entangled, bunched, crossed or stuck together by starch or sizing, without breaking, severing or mutilating them and therebyprovide for the production of a fine grade of cloth.

It further has for its object to provide a device which will cause a uniform tension on the warp threads at all times.

Referring to the drawings :-Figure 1 is a front view in elevation of a portion of a loom with my invention applied thereto. Fig. 2 an end view of the cleaver, lever and the crank shaft and crank of a loom on an enlarged scale. Fig. 3 a detail front view of the cleaver and lever on an enlarged scale.

In the drawings in which like numerals of reference indicate like parts throughout the several views; 1 represents a portion of a loom of well known construction, comprising a framework 2 with an arch 3 rising therefrom, main driven shaft 1 mounted in said frame work and having cranks 5 thereon, one end of said shaft being provided with a pulley 6 designed to be operatively connected, by means of a belt 7, to another pulley, not shown, driven by any suitable power.

The cleaver comprises a rectangular frame 8 having longitudinal bars 9 and 10 which terminate at each end in a trunnion or short shaft 11 each having a hole 12 therethrough and cross bars 18 for use in bracing the said frame and keeping it from twisting out of shape. The trunnions or short shafts of the cleaver are mounted in hearings in brackets 14, attached to the framework of the loom, and are held therein by means of pins 15 inserted in holes 12 of said trunnions or short shafts.

The cleaver is rocked or oscillated by means of a lever 16 depending from a bracket 17 mounted on the frame 8 of the cleaver. The bracket 17 comprises a looped shaped body portion 18, which is designed to embrace the frame 8, and two lugs or outwardly projecting portions 19.

The lever 16 of the cleaver has an upper substantially horizontal portion 20, an S- shaped bent portion 21, a lower outwardly and downwardly curved portion 22 and terminates in a substantially vertical portion 23, the end of which is free. The substantially horizontal portion 20 of the lever is secured between the lugs 19 of the bracket 17 by means of a screw bolt and nut 24.

The bracket 17 can be adjusted to the desired point on the frame 8 of the cleaver, to adapt it to looms of varying sizes, and after being adjusted is clamped tightly thereon by means of the screwbolt and nut 24:.

The amount or extent of rocking or oscillating movement of the cleaver depends on the extent of curvature of the curved portion 22 of the lever 16. l/Vhen the curvature is diminished there will be more movement and when increased less movement imparted to the cleaver by the crank of the driven shaft 4 of the loom. When the harness is closed the cleaver will be in a substantially vertical position and when the harness is open the cleaver will lie flat or in a substantially horizontal position, so that the warp threads will be subjected to a uniform tension or strain at all times during the operation of the loom.

In operation the loom is set in motion which causes the shaft 4 and cranks 5 to rotate and with each rotation of the said shaft the crank thereon contacts with the inner surface of the curved portion 22 of the lever and rocks or oscillates the cleaver all the time the loom is in operation.

I do not desire to be understood as limiting myself to the specific details of construction and arrangement as herein described and illustrated, as it is manifest that variations and modifications may be made in the features of construction and arrangement, in the adaptation of the device to the various (conditions of use without departing from the spirit and scope of my invention and improvements. I therefore reserve the right to all such variations and modifications as properly fall within the scope of my invention and the terms of the following claims.

What I claim is 1. In a loom, a cleaver comprising a frame pivotally mounted on said loom, a le ver adjustable on said frame and having its lower end free and means designed to engage and operate said lever, substantially as described.

2. In a loom, a cleaver comprising a frame pivotally mounted on said loom, a leverhaving one end free and the other end provided with a loop embracing said frame, means for securing said loop on said frame and means designed to engage and operate said lever, substantially as described.

8. In a loom, a cleaver comprising a frame pivotally mounted on said loom, a bracket having a loop embracing said frame, means for adjustably securing said loop on said frame, a lever having one end connected to the bracket and the other end free and means designed to engage said lever and operate the cleaver, substantially as described.

4. In a loom, a cleaver comprising a frame pivotally mounted on said loom, a bracket having lugs and a loop embracing said frame, means for securing said loop on the frame, a lever having one end secured to the lugs of said bracket and its opposite end free and means designed to engage the free end of the lever and operate said lever and cleaver, substantially as described.

5. In a loom, a supporting framework, a cleaver comprising. a frame pivotally mounted on said supporting framework, a bracket having a loop embracing said frame, lugs projecting from said bracket, means for securing said loop on the frame, a lever having one end secured between the lugs of said bracket and the other end free and means designed to engage the free end of the lever and operate the said lever and cleaver, substantially as described.

In testimony whereof I aflix my signature in the presence of two Witnesses.

BENJAMIN F. ABBOTT.

Vitnesses:

CHARLES WV. COOLIDGE, SAMUEL SYLvEsTEn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

